Fastening-inserting machine



i- 1938, J. A. CASWELL ET AL 2,105,719

FASTENING INSERTING MACHINE Filed March 1, 1937 v 2 Sheets-Sheet l 1 (1O j as 101 2g 33 Q 5 :56 l 3 Feb. 1, 1938. J c sw E AL 2,106,719

FASTENING INSERTING MACHINE Filed March 1, 1937 2 Sheets-Sheet 2Patented Feb. 1, 1938 sr'res T OFFIE FASTENING-INSERTING MACHINEApplication March 1, 1937, Serial No. 128,310

14 Claims.

This invention relates to fastening-inserting machines and is hereinillustrated as applied to a machine of the type disclosed in LettersPatent of the United States No. 1,815,295, granted on July 21, 1931,upon an application of George Goddu for driving staples to fasten shoeuppers in lasted position. It is to be understood, however, that theinvention is not limited to machines of that particular type nor tomachines for fastening shoe uppers.

Machines of the type shown in the above-mentioned Letters Patentcomprise in their organization a driver for driving staples from aguiding nozzle through the shoe upper materials and into an insole tofasten the upper to the insole and a deflector for engaging the legs ofeach staple to curve difier-ent portions of the legs successively in thedriving operation before the different respective portions enter theshoe, and thus to cause them to follow curved paths such as to anchorthem effectively in the insole without necessarily penetrating entirelythrough the latter. Since the upper materials are sometimes thicker atone portion of the shoe than at other portions, such machines areprovided with means for varying the position of the deflector to varythe degree or radius of curvature of the legs of the staples inoperating upon such different portions of the shoe in order that thestaple legs will be effectively anchored in the insole, this meanscomprising an eccentric controlling the deflector and an adjustingmember movable by the operator to turn the eccentric quickly todifferent predetermined positions corresponding to the desiredcurvatures of the staple legs in different portions of the shoe.

t has been proposed to utilize staples driven and anchored in the mannerabove described as temporary fastening means in lasting shoes of thatkind in which the uppers along at least a portion of the sides of theshoes are secured in lasted position by an adhesive, the staples beinginserted in such manner that they may be conveniently removed after theadhesive has set without leaving any disfiguring marks such as tackholes in the inner or foot-engaging portions of the insoles. Shoes ofthat kind are usually lasted with staples in the shank and with cementat the forepart, and accordingly, it is desirable that the legs of thestaples applied along the sides of the iorepart be driven only partiallyinto the work so that they project somewhat from the upper to facilitatethe removal of the staples after the cement has set, while in lastingthe shank portion of the shoe where the staples serve as permanentfastening means, the legs of the staples are, of course, driven fullyinto the work. One object of the invention, accordingly, is to providein a machine of the type herein shown, means for quickly adjusting themachine to drive the staples either fully or partially into the work.For the purpose in viewthe invention in one important aspect providesmeans controlled by the deflectoradjusting member for varying the limitof driving movement of the driver. In machines of the type shown in theabove-mentioned Letters Patent the fastening-inserting means is movedinwardly over the bottom of the shoe in each cycle of the machine intoupper-fastening position by a forwardly movable slide on which there isa camoperated lever for imparting operative movement to the driver afterthe slide has completed its forward movement. In the construction shownthis lever is mounted for swinging movement on an eccentric sleeve towhich there may be imparted in each cycle of the machine in response tothe forward movement of the slide a turning movement to cause the leverto be swung in a direction to retract the driver and thus to determine alimit of movement thereof toward the deflector short of its normallimit. For turning the sleeve there is provided a latch connected to thesleeve and held by a spring in position to cooperate with a fixed stopin the machine. In order that the latch may be moved out of cooperativerelation to the fixed stop when the staples are to be fully driven theabove-mentioned adjusting member for varying the curvature of the staplelegs carries a roll which, when it engages a lip on the latch, swingsthe latch into a position in which it will not engage the stop in theforward movement of the slide. Thus, the mechanism for varying the limitof driving movement of the driver may be rendered operative orinoperative at will by movement of the adjusting member, the lip on thelatch being preferably so shaped that the latch is released to theaction of the spring for engagement with the fixed stop only when theadjusting member has been moved into position to cause the staple legsto be curved on a comparatively short radius, as in operating at theforepart of a shoe.

The novel features of the invention including various novel details ofconstruction and combin-. ations of parts will now be more particularlyde-- scribed by reference to the accompanying drawings and pointed outin the claims.

In the drawings,

Fig. 1 is a View in right-hand side elevation of a portion of the headof a machine in which the invention is embodied;

a forward extension of the slide 22.

Fig. 2 is a view on an enlarged scale of a portion of the structureshown in Fig. 1, showing the mechanism for varying the limit of drivingmovementof the driver with the parts in inoperative positions;

Fig. 3 is a view similar to Fig. 2 but showing the parts for varying thelimit of driving movement of the driver in operative positions;

Fig. 4 is a top plan view of the mechanism shown in Fig. 3;

Fig. 5 is a perspective view with parts broken away showing the meansfor varying the curvature of the staple legs detached from otherportions of the machine; and

Fig. 6 is a sectional view illustrating the driving of a staple onlypart way in the work to facilitate its subsequent removal.

Since the general organization of a machine of the type illustrated isfully shown and described in the previously mentioned prior LettersPatent, it is only necessary to refer herein to the construction andmanner of operation of certain instrumentalities which are closelyassociated with the work on which the machine operates. It will beunderstood that a machine of this type is provided with a gripper Ill(Fig. l) which pulls the upper materials over the last and insolesuccessively in different locations along the edge of the shoe bottom asthe operator presents the shoe in positions determined by asole rest l2and a side gage l4. In time relation to the pulling of the upper in eachlocation a staple is driven from a guiding nozzle l6 by a driver I8(Figs. 2 and 3) to fasten the upper to the insole. As the staple isdriven its legs are engaged by a deflector 20 the lower end of which ispositioned opposite to the end of the nozzle IS, the deflector acting tocurve different portions of the legs successively before the differentrespective portions enter'the shoe to cause the legs to follow curvedpaths such as to anchor them effectively in the insole without entirelypenetrating through the insole.

The driver l8, the deflector 20 and other parts associated therewith arecarried by a slide 22 I mounted on a guiding member 24 for forwardmovement in a downwardly inclined path. In predetermined time relationto each upper pulling operation the slide 22 is moved forwardly to carrythe nozzle l6 and other parts associated therewith inwardly over theshoe bottom to lay the margin of the upper over the insole, whereuponthe staple is driven and the slide 22 is then retracted to its startingposition. As disclosed in the previously mentioned Letters Patent No.1,815,295 the driver I8 is secured to a driver slide 26 which is movablein a guideway formed in a bracket 28 secured to The driver slide isoperated by a lever 30 which is pivoted on a stud 32 on the forwardextension of the slide 22, the lever 30 having adjustably secured to itslower end a block 34 which is swiveled in a recess in the driver slide.Formed in the lever 30 is a cam slot 36 engaged by a roll 38 (Fig. 1)carried by an arm 40 pivotally mounted on the slide 22. The cam slot 36is so formed that staple driving movement is imparted to the lever 30 byupward movement of the arm 40 and driver retracting movement is impartedto the lever 30 by downward movement of the arm.

As also disclosed in the previously mentioned Letters Patent No.1,815,295, the deflector 2D is mounted on a pivot pin 42 for turningmovement to vary the distance between the portion thereof that engagesthe legs of the staple and the points where the legs emerge from the endof the staple nozzle 16 and thus to vary the degree or radius ofcurvature imparted to the legs in the driving operation, the position ofthe deflector being determined by an eccentric 44 (Figs. l, 5 and 6)formed on a shaft 43 which is carried by the slide 22 and is mounted forturning movement to adjust the eccentric. By reference to Fig. 6 it willbe seen that the eccentric 44 bears on an arm 48 formed on the deflector20 and thus limits movement of the deflector about the axis of the pin42 in a direction to increase the distance between its lower end and theoutlet end of the nozzle It and, accordingly, to increase the radius ofcurvature of the staple legs. It will be understood that the arm 48 isforced against the eccentric by reason of the pressure applied to thedeflector in the staple driving operation and there is suflicientfriction tending to prevent the deflector from turning about its axis tocause it to maintain any position determined by the eccentric.

The shaft 46 is supported in part by a bracket 50 (Figs. 2, 3 and 5)which is fastened by screws 52 to the slide 22. For turning the shaft.and the eccentric 44 to vary the position of the deflector 20 in suchmanner as to alter the curvature of the staple legs in operating upondifferent portions of the same shoe there is provided a device or member54 having a split bearing portion 58 frictionally clamped to the shaft46 by a screw 58. Formed as a part of the member 54 is a handle 6D forturning the member and the shaft 46. The member 54 is thus movable inopposite directions between definitely predetermined positionscorresponding to the desired curvature of the staple legs in operatingupon difierent portions of the shoe. For determining such positions ofthe member 54 it carries a spring-pressed latch 62 arranged to enter anotch 64 provided in the edge of an arc-shaped portion 55 of the bracket50 and also arranged to enter a notch 68 in a mem ber H3 which isadjustable to different positions along a guideway 12 provided in thearc-shaped portion 66 and is held in adjusted position by a set screw14. When the latch 62 is in the notch 64 the eccentric 44 is set tocause the legs of the staple to receive a curvature of comparativelyshort radius as desired in operating, for example, on the forepart of ashoe, and when the latch is in the notch 68 of the member 10, theeccentric is set to cause the legs to receive a curvature of longerradius as may be desired in operating along the shank portion of theshoe near the heel seat, the radius of this curvature being determinedby adjustment of the member along the guideway !2. In order that theradius of curvature of the staple legs may be Varied as desired inoperating, for example, along the shank portion. of the shoe bottom nearthe ball line, there is provided a second member 76 having a notch 18formed therein to receive the latch 62, the member 76 being adjustablealong the guideway '12 and being held in adjusted position by a screw80. The latch 52 and the notches 64, 68 and 18 are so formed that thelatch will slip out of any one of the. notches in response to pressureapplied by the operators hand to the handle 60 so that the operator canmove the member 54 instantly from one predetermined position to anotherat any time. I

The illustrated machine is further provided with means which issubstantially the same as that shown in United States Letters Patent No.1,938,575, granted on December 12, 1933, upon an application of B. B.Blanchard, for additionally varying the position of the deflector 28 :toefiect a variation in the curvature of the staple legs in operation ondifferent shoes. For this purpose there is fixed on the outer end of theshaft 48 a segmental gear member I (Fig. 5) which is engaged by anothersegmental gear member i'i fast on a short shaft I9 mounted in a bearingin the member 54, this short shaft being provided with a hand lever SIfor turning it. It will thus be seen that by means of the hand lever M aturning movement of indeterminate extent may be imparted to the shaft 48against the resistance of the friction with which the shaft is clampedto the member '54 and that the mechanism for thus turning the shaft 48is carried by the member 54 and is movable with it to the diiferentpositions determined by the latch 82 and the notches 64, 68 and I8.While the member 54 is in any one of the predetermined positions theshaft 46 may be turned by the operator any distance desired merely inresponse to pressure applied by the operators hand to the lever 8I. Themachine as thus far described is substantially like that shown in theabove-mentioned Letters Patent.

For purposes of this invention the illustrated machine is provided withmeans controlled by the deflector-adjusting means for varying the limitof movement of the driver toward the deflector. This means comprises asleeve 82 (Fig. 4) which is rotatably mounted on the stud 32 and has areduced end portion 84 which forms a bearing for the driver slideoperating lever 38, this portion of the sleeve being eccentric to theaxis of the stud 32. Formed on the sleeve 82 is a depending arm 88 towhich there is pivotally connected by means of a shouldered screw 88 arearwardly extending latch 98. Formed on the latch is a downwardlyextending lip 82 and coiled about the shouldered portion of the screw 88is a spring 88 which tends to swing the latch 98 downwardly and to holdit whenthe parts are in the positions shown in Fig. 2 with the curvededge '96 of the lip 82 in engagement with a stop 98, illustrated as aroll, carried by the handle 88.

t will be understood that with the parts in the positions shown in Fig.2 the latch 62 is in engagement with the notch '88 and the eccentric 88is set to cause the legs. of the staple to receive a curvature ofcomparatively long radius. Movement of the handle 88 from the positionshown in Fig. 2 to the position shown in Fig. 3 moves the roll 98 out ofengagement with the lip 82, thereby releasing the latch 98 to the actionof the spring 94- which swings the latch downwardly into engagement with.a fixed stop I88 illustrated as a pin projecting from the guidingmember 24. With the parts in the positions shown in Fig. 3, as the slide22 is moved forwardly in each cycle of the machine the sleeve 82 isrotated on the stud 32 because of the engagement of the pin E88 with thelatch 88, and by reason of the eccentricity of the portion 84 of thesleeve a swinging movement is imparted to the lever 38 about the axis of"the roll 38 in a direction to impart to the slide 28 a movement to theleft to retract the driver. This determines a limit of movement of thedriver I8 toward the deflector 28 short of its normal limit, so that thelegs of the stable are not driven fully into the work to permit thestaple to be remove-d readily by engaging its crossbar with a suitablestapleremoving tool. Secured to the outer end portion of the stud 32 bya set screw I8I is a collar 582 provided with a projection I84. The

sleeve 82 is recessed to receive the projection I84, and coiled aboutthe sleeve is a spring I88 which tends to rotate the sleeve in aclockwise direction (Figs. 2 and 3) and to hold the sleeve with ashoulder I88 thereon in engagement with the projection I84 on the collarI82. It Will be evident that the extent of turning movement imparted tothe sleeve 82 to swing the lever 38 in the direction to move the slide28.to the left and thereby to alter the position of the driver I8 at theend of its driving movement may be varied by loosening the screw ml andmoving the collar I82 relatively to the stud 32 to vary the initialposition of the latch 98 relatively to the fixed stop I88, thus varyingthe time in the forward movement of the slide 22 when the latch engagesthe fixed stop.

By reference to Figs. 2 and 3 it will be seen that the length of the lip92 is such that the roll 98 is moved out of engagement with the lip whenthe handle 88 has been swung far enough to the left to move the latch 82into engagement with the notch 84 and to set the eccentric 44 to causethe legs of the staple to receive a curvature of comparatively shortradius. Thus,

the mechanism for varying the limit of move ment of the driver towardthe deflector is operative when the parts are in the positions shown inFig. 3, this mechanism being rendered inoperative by movement of thehandle 68 to the right (Figs. 2 and 3) to move the latch 82 intoengagement with either of the notches 78 or 88. It will be evident thatas the handle 88 is thus swung to the right the roll 98 by engagementwith the curve-d edge 98 of the lip 82 swings the latch 98 against theresistance of the spring 98 into a position in which it will not engagethe stop I88 in the forward movement of the slide 22. It will beunderstood that with the latch 62 in engagem'ent with any one of thenotches 84, 88 and I8 the position of the deflector may be additionallyvaried by movement of the hand lever 8|.

Having described-our invention, what we claim as new and desire 'tosecure by Letters Patent of the United States is:

1. In a fasteningeinserting machine, the combination with a driver fordriving staples, a deflector for engaging the legs of each staple tocurve different portions of the legs successively in the drivingoperation before the different respective portions enter the work tocause them to follow curved paths in the work, and means for varying theposition of the deflector to vary the curvature of the staple legs, ofmechanism controlled by said last-named means for varying the limit ofdriving movement of the driver.

2. In a fastening-inserting machine, the combination with astaple-guiding nozzle, a driver for driving a staple from said nozzle, adeflector opposite to the outlet end of said nozzle for engaging thelegs of the staple inthe driving operation and for curving them prior toand during their entrance into the work to cause them to follow curvedpaths in the work, and means for varying the position of the deflectorto vary the curvature of the staple legs, of mechanism controlled bysaid last-named means for varying the limit of movement of the drivertoward the deflector.

3. In a fastening-inserting machine, the combination with a driver fordriving staples, and deflecting means for engaging the legs of eachstaple in the driving operation and for curving them prior to andduring, their entrance into the work to cause them to follow curvedpaths in the work, of mechanism for varying the limit of drivingmovement of the driver, and a member movable by the operator to adjustsaid deflecting means to determinevariably for difierent staples thecurvature of the legs and for also controlling said mechanism.

4. In a fastening-inserting machine, the combination with a driver fordriving staples, deflecting means for engaging the legs of each staplein the driving operation and for curving them prior to and during theirentrance into the work to cause them to follow curved paths in the work,and a device movable by the operator into any one of a number ofdifferent predetermined positions to determine variably for differentstaples the degree of curvature of the legs, of mechanism arranged to berendered operative by the movement of said device into one of saidpositions for determining a limit of driving movement of the drivershort of its normal limit.

5. A fastening-inserting machine having, in combination, a staplenozzle, a driver for driving a staple from said nozzle, a deflectoropposite to the outlet end of said nozzle for engaging the legs of thestaple in the driving operation and for curving them prior to and duringtheir entrance into the work to cause them to follow curved paths in thework, a device movable by the operator to difierent positions foradjusting said deflector to vary the curvature of'the staple legs, meansfor predetermining different positions of said device, means fordetermining a limit of driving movement of said driver short of itsnormal limit, and means controlled by said device for rendering saidlast-named means operative only when said device has been moved into oneof said predetermined positions.

6. A fastening-inserting machine having, in combination,shoe-positioning means, fasteninginserting mechanism comprising a staplenozzle, a driver for driving a staple from said nozzle, a deflectoropposite to the outlet end of said nozzle for engaging the legs of thestaple in the driving operation and for curving them prior to and duringtheir entrance into the work to cause them to follow curved paths in thework, a slide movable forwardly to carry said fastening-insertingmechanism inwardly over the bottom of the shoe, means for varying theposition of the deflector to vary the curvature of. the staple legs, andmechanism controlled by said last-named means for imparting to saiddriver in response to the forward movement of the slide a movement in adirection opposite to the direction of its driving movement to vary thelimit of movement of said driver toward the deflector.

'7. In a fastening-inserting machine, the combination with a driver fordriving staples, means for imparting to the driver a staple-drivingmovement of predetermined extent, and means for engaging the legs ofeach staple to curve different portions of the legs successively in thedriving operation before the different respective portions enter thework to cause them to follow curved paths in the work, of mechanism forvarying the position of the driver in each cycle of the machine prior toits staple-driving movement to vary the limit of driving movement of thedriver, and means for rendering said mechanism operative or inoperativeat will.

8. In a fastening-inserting machine, the combination with a driver fordriving staples, means for imparting to the driver a staple-drivingmovement of predetermined extent, and means for engaging the legs ofeach staple in the driving operation and for curving them prior to andduring their entrance into the work to cause them to follow curved pathsin the work, of mechanism for imparting to the driver in each cycle ofthe machine prior to its driving movement a movement of predeterminedextent in a direction opposite to the direction of its driving movementto determine the limit of driving movement of the driver, andoperator-controlled means for rendering said mechanism inoperative.

9. In a fastening-inserting machine, the combination with a driver fordriving staples, a defiector for engaging the legs of each staple in thedriving operation and for curving them prior to and during theirentrance into the work to cause them to follow curved paths in the work,and means for operating the driver comprising a lever and cam means forswinging the lever through a predetermined angle, of mechanism under thecontrol of the operator for imparting to said lever in each cycle of themachine independently of said cam means a swinging movement to vary theposition of the driver and thereby to vary the limit of driving movementof the driver.

10. In a fastening-inserting machine, the combination with a driver fordriving staples, a deflector for engaging the legs of each staple in thedriving operation and for curving them prior to and during theirentrance into the work to cause them to follow curved paths in the work,a lever arranged to operate said driver and having a cam slot therein,and an arm provided with a roll engaging said lever in its cam slot foroperating the lever, of mechanism arranged to be rendered operative atwill for imparting to said lever in each cycle of the machine a swingingmovement about the axis of said roll in a direction to retract thedriver and thus to vary the limit of its driving movement.

11. A fastening-inserting machine having, in combination, a staplenozzle, a driver for driving a staple from said nozzle, a deflectoropposite to the outlet end of said nozzle for engaging the legs of thestaple in the driving operation and for curving them prior to and duringtheir entrance into the work to cause them to follow curved paths in thework, a pivoted lever connected to said driver for operating it, andmechanism arranged to be rendered operative or inoperative at will forimparting to said lever in each cycle of the machine a swinging movementin a direction to retract said driver to vary the limit of its drivingmovement, said mechanism being adjustable to determine the extent ofswinging movement imparted to said lever and thereby to determine theposition of the driver relatively to the deflector at the end of itsdriving movement.

12. A fastening-inserting machine having, in combination,fastening-inserting mechanism comprising a staple nozzle, a driver fordriving a staple from said nozzle, and a deflector opposite to theoutlet end of said nozzle for engaging the legs of the staple in thedriving operation and for curving them prior to and during theirentrance into the work to cause them to follow curved paths in the work,means for moving said fastening-inserting mechanism toward the work,mechanism operative in response to such movement of thefastening-inserting mechanism for varying the position of the driver tovary the limit of its driving movement, and means for rendering saidlast-named mechanism operative or inoperative at will.

13. A fastening-inserting machine having, in combination,shoe-positioning means, fasteninginserting mechanism comprising a staplenozzle, a driver for driving a staple from said nozzle, a deflectoropposite to the outlet end of said nozzle for engaging the legs of thestaple in the driving operation and for curving them prior to and duringtheir entrance into the work to cause them to follow curved paths in thework, a slide movable forwardly to carry said fastening-insertingmechanism inwardly over the bottom of the shoe, a lever on said slidefor operating the driver, an eccentric on which said lever is mountedfor swinging movement, means for turning said eccentric in response tothe forward movement of the slide to vary the axis of swinging movementof said lever and thus to vary the limit of driving movement of thedriver, and means for rendering said last-named means operative orinoperative at will.

14. A fastening-inserting machine having, in combination,shoe-positioning means, fasteninginserting mechanism comprising a staplenozzle,

a driver for driving a staple from said nozzle, a deflector opposite tothe outlet end of said nozzle for engaging the legs of the staple in thedriving operation and for curving them prior to and during theirentrance into the work to cause them to follow curved paths in the work,a slide movable forwardly to carry said fastening-inserting mechanisminwardly over the bottom of the shoe, a lever on said slide foroperating the driver, an eccentric on which said lever is mounted forswinging movement, a latch for turning said eccentric in response to theforward movement of said slide to vary the axis of swinging movement ofsaid lever and thus to vary the limit of driving movement of the driver,a fixed stop for operating said latch, a spring for holding the latch inposition to cooperate with said stop, and a member. movable by theoperator at will to eifect relative movement of said latch and stop outof cooperative relation.

JOHN A. CASWELL. CHARLES A. ROBINSON.

